Samsung Electronics Co., Ltd.

Sung Hak Kim

Chang Ho Kim

Young Hoon Lee

An intersection navigation system for a hoist to prevent a hoist unit of the hoist from falling when the hoist unit passes an intersection may include a hoist unit including an auxiliary mover and a railway on which the hoist unit travels. The railway may include an intersection having auxiliary rails on which the auxiliary mover moves. Furthermore, the auxiliary mover may be configured to prevent the hoist unit from falling when the hoist unit passes through the intersection.

Intersection navigation system

A circuit and method which provides the simultaneous transmission of page data in a paging system by delaying a reference clock signal from a global positioning system. The method for the simultaneous transmission of page data in a paging system comprises the steps of: inputting the reference clock signal from the Global Positioning System (GPS) receiver into a plurality of transmitter controllers of the paging system; delaying, by a value of 1&minus;X seconds, the reference clock signal which is input into each of the transmitter controllers, the value of X being a delay time associated with the transmitter associated with each of the transmitter controllers; sending the page data from the plurality of transmitter controllers to each of the associated transmitters in accordance with the delayed clock signal; and transmitting the page data from the plurality of transmitters simultaneously, whereby the simultaneous transmission of page data is synchronized with the reference clock signal from the GPS receiver, notwithstanding the delay time associated with each of the transmitters.

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Seoul, South Korea

Sung Hak Kim